ArticleAge (Dordrecht, Netherlands)2013
Association of sleep quality and dementia among long-lived Chinese older adults.
Article in Age (Dordrecht, Netherlands), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Sleep Quality and Aging: A Systematic Review on Healthy Older People, Mild Cognitive Impairment and Alzheimer's Disease.International journal of environmental research and public health · 2022Pooled it
- Resilience to cognitive impairment in the oldest-old: design of the EMIF-AD 90+ study.BMC geriatrics · 2018Trial
- Sleep disturbances and disorders in the memory clinic: Self-report, actigraphy, and polysomnography.Journal of Alzheimer's disease : JAD · 2025Article
- Worldwide Prevalence of Poor Sleep Quality in Older Adults: A Systematic Review and Meta-Analysis.Iranian journal of psychiatry · 2025Review
- Association of Sleep Disturbances With Prevalent and Incident Motoric Cognitive Risk Syndrome in Community-Residing Older Adults.Neurology · 2024Article
- Sleep Quality and Cognitive Decline Across the Adult Age Range: Findings from the Maastricht Aging Study (MAAS).Journal of Alzheimer's disease : JAD · 2023Article
- Sleep Detection for Younger Adults, Healthy Older Adults, and Older Adults Living With Dementia Using Wrist Temperature and Actigraphy: Prototype Testing and Case Study Analysis.JMIR mHealth and uHealth · 2021Article
- Reliability, Validity, and Factor Structure of Pittsburgh Sleep Quality Index in Community-Based Centenarians.Frontiers in psychiatry · 2020Article
- Association between Poor Sleep Quality and Subsequent Peptic Ulcer Recurrence in Older Patients with Mild Cognitive Impairment: Examining the Role of Social Engagement.Scientific reports · 2019Article
- Sleep, hippocampal volume, and cognition in adults over 90 years old.Aging clinical and experimental research · 2018Article
- Addressing sleep disturbances: an opportunity to prevent cardiometabolic disease?International review of psychiatry (Abingdon, England) · 2014Review
- Analysis of Sleep Quality in People With Dementia: A Preliminary Study.Gerontology & geriatric medicineArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In this study, we examined the existence of relationship between sleep quality and dementia in subjects aged 90 years and above. The sample included 216 men and 444 women. Dementia and sleep quality were measured with 30-item mini-mental state examination (MMSE) and the Pittsburgh sleep quality index, respectively. Subjects with dementia had higher sleep quality score (7.83 ± 2.15 vs. 5.22 ± 2.49; P < 0.0001), longer sleep latency (50.97 ± 21.33 vs. 37.61 ± 12.53; P < 0.0001), and a lower sleep efficiency percentage (73.95 ± 8.783 vs. 81.32 ± 10.21; P < 0.0001) and more likely to report poor sleep quality (25.42 vs.17.13 %; P = 0.035). Subjects with poor sleep quality had significantly lower MMSE scores (P = 0.007) and higher prevalence of dementia (P = 0.042). Multiple logistic regressions were performed by adjusting clinical factors that are thought to be associated with dementia or sleep quality. We found that poor sleep quality was a risk factor for dementia (unadjusted odds ratio (OR) 1.719, 95 % confidence interval (CI) 1.138-2.597; adjusted OR 1.759, 95 % CI 1.012-3.057). There was no significant difference in MMSE scores (11.25 ± 3.40, 16.26 ± 5.14, and 15.43 ± 5.51; P = 0.105) among participants with daily average sleep durations of <5, 5-9, and >9 h, respectively. Among Chinese nonagenarians and centenarians, dementia was correlated with poor sleep quality, longer sleep latency, and lower sleep efficiency percentage.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.